Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities
Summary Earlier snowmelt at high latitudes advances above‐ground plant phenology, thereby affecting water, nutrient and carbon cycles. Despite the key role of fine roots in these ecosystem processes, phenological responses to earlier snowmelt have never been assessed below‐ground. We experimentally...
Published in: | Functional Ecology |
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crwiley:10.1111/1365-2435.12853 2024-09-30T14:40:19+00:00 Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities Blume‐Werry, Gesche Jansson, Roland Milbau, Ann Dorrepaal, Ellen Kempestiftelserna Stiftelsen Oscar och Lili Lamms Minne 2017 http://dx.doi.org/10.1111/1365-2435.12853 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.12853 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12853 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.12853 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12853 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Functional Ecology volume 31, issue 7, page 1493-1502 ISSN 0269-8463 1365-2435 journal-article 2017 crwiley https://doi.org/10.1111/1365-2435.12853 2024-09-11T04:13:33Z Summary Earlier snowmelt at high latitudes advances above‐ground plant phenology, thereby affecting water, nutrient and carbon cycles. Despite the key role of fine roots in these ecosystem processes, phenological responses to earlier snowmelt have never been assessed below‐ground. We experimentally advanced snowmelt in two contrasting plant community types (heath and meadow) in northern Sweden and measured above‐ and below‐ground phenology (leaf‐out, flowering and fine root growth). We expected earlier snowmelt to advance both above‐ and below‐ground phenology, and shrub‐dominated heath to be more responsive than meadow. Snow melted on average 9 days earlier in the manipulated plots than in controls, and soil temperatures were on average 0·9 °C higher during the snowmelt period of 3 weeks. This resulted in small advances in above‐ground phenology, but contrary to our expectations, root phenology was unresponsive, with root growth generally starting before leaf‐out. These responses to the snowmelt treatment were similar in both plant community types, despite strong differences in dominating plant functional types and root properties, such as root length and turnover. The lack of a response in root phenology, despite warmer soil temperatures and above‐ground phenological advances, adds evidence that above‐ground plant responses might not be directly translated to below‐ground plant responses, and that our understanding of factors driving below‐ground phenology is still limited, although of major importance for water, nutrient and carbon cycling. Article in Journal/Newspaper Northern Sweden Subarctic Wiley Online Library Functional Ecology 31 7 1493 1502 |
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English |
description |
Summary Earlier snowmelt at high latitudes advances above‐ground plant phenology, thereby affecting water, nutrient and carbon cycles. Despite the key role of fine roots in these ecosystem processes, phenological responses to earlier snowmelt have never been assessed below‐ground. We experimentally advanced snowmelt in two contrasting plant community types (heath and meadow) in northern Sweden and measured above‐ and below‐ground phenology (leaf‐out, flowering and fine root growth). We expected earlier snowmelt to advance both above‐ and below‐ground phenology, and shrub‐dominated heath to be more responsive than meadow. Snow melted on average 9 days earlier in the manipulated plots than in controls, and soil temperatures were on average 0·9 °C higher during the snowmelt period of 3 weeks. This resulted in small advances in above‐ground phenology, but contrary to our expectations, root phenology was unresponsive, with root growth generally starting before leaf‐out. These responses to the snowmelt treatment were similar in both plant community types, despite strong differences in dominating plant functional types and root properties, such as root length and turnover. The lack of a response in root phenology, despite warmer soil temperatures and above‐ground phenological advances, adds evidence that above‐ground plant responses might not be directly translated to below‐ground plant responses, and that our understanding of factors driving below‐ground phenology is still limited, although of major importance for water, nutrient and carbon cycling. |
author2 |
Dorrepaal, Ellen Kempestiftelserna Stiftelsen Oscar och Lili Lamms Minne |
format |
Article in Journal/Newspaper |
author |
Blume‐Werry, Gesche Jansson, Roland Milbau, Ann |
spellingShingle |
Blume‐Werry, Gesche Jansson, Roland Milbau, Ann Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities |
author_facet |
Blume‐Werry, Gesche Jansson, Roland Milbau, Ann |
author_sort |
Blume‐Werry, Gesche |
title |
Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities |
title_short |
Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities |
title_full |
Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities |
title_fullStr |
Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities |
title_full_unstemmed |
Root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities |
title_sort |
root phenology unresponsive to earlier snowmelt despite advanced above‐ground phenology in two subarctic plant communities |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/1365-2435.12853 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2435.12853 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12853 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.12853 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.12853 |
genre |
Northern Sweden Subarctic |
genre_facet |
Northern Sweden Subarctic |
op_source |
Functional Ecology volume 31, issue 7, page 1493-1502 ISSN 0269-8463 1365-2435 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2435.12853 |
container_title |
Functional Ecology |
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31 |
container_issue |
7 |
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1493 |
op_container_end_page |
1502 |
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1811642805966077952 |